BKRR
| Batten Kill Railroad | 1 |
BNSF
| BNSF Railway | 2 |
CSX
| CSX Railroad | 4 |
DH
| Delaware & Hudson | 5 |
GREX
| Georgetown Rail Equipment Company | 2 |
LMIX
| Loram Maintenance of Way Inc. | 2 |
MRL
| Montana Rail Link | 4 |
NS
| Norfolk Southern | 1 |
NW
| Norfolk & Western | 1 |
NYSW
| New York Susquehanna & Western | 1 |
RMSX
| Pandrol Jackson Incorporated | 1 |
SP
| Southern Pacific | 1 |
WE
| Wheeling & Lake Erie | 3 |